Interstate 55 in Arkansas
I-55 highlighted in red | ||||
| Route information | ||||
| Maintained by ArDOT | ||||
| Length | 72.22 mi (116.23 km) | |||
| Existed | 1957–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end | I-55 / US 61 / US 64 / US 70 / US 78 / US 79 / SR 1 at the Tennessee state line | |||
| US 70 in West Memphis I-40 / US 79 in West Memphis US 64 in Marion I-555 / US 61 / AR 77 in Turrell US 61 in Blytheville US 78 / AR 18 in Blytheville | ||||
| North end | I-55 at the Missouri state line | |||
| Location | ||||
| Country | United States | |||
| State | Arkansas | |||
| Counties | Crittenden, Mississippi | |||
| Highway system | ||||
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Interstate 55 (I-55) is a north–south Interstate Highway that has a 72.22-mile (116.23 km) section in the US state of Arkansas connecting sections in Tennessee and Missouri. The route enters Arkansas on the Memphis & Arkansas Bridge over the Mississippi River from Memphis, Tennessee. It travels northward through northeast Arkansas, connecting the cities of West Memphis and Blytheville. I-55 continues into Missouri heading to St. Louis, Missouri. The highway overlaps I-40 in West Memphis and has a junction with I-555, a spur route to Jonesboro, in Turrell. For the majority of its routing through Arkansas, I-55 generally follows U.S. Highway 61 (US 61) and has a 67.08-mile (107.95 km) long concurrency with US 78 from the Tennessee state line in Memphis to Blytheville for most of its length.